UMAX140610. LIN
– J1939 CAN Protocol Converter with PWM Output. Version 1
Page: 9-81
The converter takes its network
ECU Address
from a pool of addresses assigned to self-
configurable ECUs. The default address can be changed during an arbitration process or upon
receiving a commanded address message. The new address value will be stored in a non-
volatile memory and used next time for claiming the network address. The
ECU Address
can
also be changed in EA.
2.4.3 Network Bus Terminating Resistors
The converter does not have an embedded 120 Ohm CAN bus terminating resistor.
Terminating resistors should be installed externally on both ends of the CAN twisted pair cable
according to the J1939/11(15) standards to avoid communication errors.
Even if the length of the CAN network is short and the signal reflection from both ends of the
cable can be ignored, at least one 120 Ohm resistor is required for the majority of CAN
transceivers to operate properly.
2.5 Default Settings
The converter does not have any preprogrammed functionality. See
section for an example of an application-specific converter configuration.
